1128448005387 has 32 divisors (see below), whose sum is σ = 1521793405440. Its totient is φ = 743731683840.

The previous prime is 1128448005359. The next prime is 1128448005389. The reversal of 1128448005387 is 7835008448211.

It is a happy number.

It is not a de Polignac number, because 1128448005387 - 2⁸ = 1128448005131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1128448005389) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 508079937 + ... + 508082157.

It is an arithmetic number, because the mean of its divisors is an integer number (47556043920).

Almost surely, 2^{1128448005387} is an apocalyptic number.

1128448005387 is a deficient number, since it is larger than the sum of its proper divisors (393345400053).

1128448005387 is a wasteful number, since it uses less digits than its factorization.

1128448005387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4883.

The product of its (nonzero) digits is 1720320, while the sum is 51.

The spelling of 1128448005387 in words is "one trillion, one hundred twenty-eight billion, four hundred forty-eight million, five thousand, three hundred eighty-seven".